I've only ever played The Sims 3 about five years ago, back when my computer was so old I made it through ten minutes of the game before it crashed. Now I've just installed the base game plus a few EPs (Ambitions, Pets, University, Supernatural, and Generations... thinking of getting the 'future' one). However, I notice my skins are far from realistic - I do know there are CC I can download to make it better.

Do I have to download an HQ mod for 2k textures plus skins, or only skins/clothes/etc are fine for itself? Even then, for my specs, should I download 2k or 4k textures?

Any other tips to make things visually better, or enhance the way the game flows overall? Thanks!